"Even if it kills them"

Byron York looks at the Democrats' motivation in pushing health care reform.
Going forward has turned out to be harder than many Democrats thought. And now, with various proposals lying wrecked along the road, the true believers are practicing what the strategist calls "principled damage control."
But still, does it make sense? In the end, perhaps the most compelling explanation for Democratic behavior is that they are simply in too deep to do anything else. "Once you've gone this far, what is the cost of failure?" asks the strategist.